Merge "Choreographer: add a trace for vsync callback" into udc-dev am: 854b864e am: fab3ecb5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/21562451



Change-Id: Ide84f6fea4329745c56343ffe6693901f60d34f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>